Related Experiment Video
Updated: Jun 7, 2026
03:10
Pilot In Vitro Study to Assess Cleaning Ability and Effects of Different Decontamination Methods on Implant Surfaces
Published on: November 21, 2025
Planning implants crown down--a systematic quality control for proof of concept.
Rolf Ewers1, Rudolf Seemann, Gerald Krennmair
1University Clinic of Maxillofacial Surgery, Medical University of Vienna, Vienna, Austria. rolf.ewers@meduniwien.ac.at
Summary
This study demonstrates a bone-supported drilling template for precise dental implant placement and immediate restoration. The innovative workflow ensures accuracy and intraoperative safety in implant dentistry.
Area of Science:
- Dental Implantology
- Surgical Planning
- Prosthodontics
Background:
- Conventional dental implant procedures often involve multiple steps and potential for error accumulation.
- Immediate restoration following implant placement can enhance patient outcomes and treatment efficiency.
Purpose of the Study:
- To evaluate an innovative backward planning approach for dental implantology using bone-oriented, crown-down implant positioning.
- To assess the accuracy and safety of a bone-supported workflow for immediate restoration in dental implant procedures.
Main Methods:
- Combined computer-assisted preoperative planning with intraoperative surgical templates for bone-borne guidance.
- Manufactured the definitive prosthesis on a plaster cast using the same drilling template for accuracy.
- Performed quantitative quality control through image matching of preoperative plans and postoperative CT scans.
Main Results:
- The bone-borne drilling template demonstrated sufficient accuracy for immediate restoration.
- Achieved minimal deviation in the apex plane (0.8 ± 0.42 mm) and angular deviation (3.18° ± 0.78°).
Conclusions:
- The evaluated workflow is a promising approach for dental implantology.
- Highlights benefits in handling, accuracy, and intraoperative safety for immediate restorations.